2018 Infiniti QX30 BaseFACTORY OEM SERVICE PROCEDURE

EPS Control Unit

EPS control unit has the following functions:

  • Reading in of signals
  • Evaluation of input factors
  • Actuation of components
  • Transmission of requests/information

Reading in of Signals 

The input factors are read in over the following connections:

  • Direct line
  • CAN communication line

    Direct line

    • The signals from the EPS torque sensor read in via a direct line.

    CAN communication line

    • The signals are read in from each control unit via CAN communication. For detail, refer to System Description .

Evaluation of Input Factors 

The input factors which are read in are evaluated by the integrated microprocessor, the relevant components are then actuated and requests/information are output.

Actuation of Components 

EPS actuator is actuated directly.

Transmission of Requests/Information 

The requirements/information are sent to each control unit via CAN communication. For detail, refer to System Description .

Factory Service Tools

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.

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